5209919 has 8 divisors (see below), whose sum is σ = 6120912. Its totient is φ = 4371840.

The previous prime is 5209913. The next prime is 5209943. The reversal of 5209919 is 9199025.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5209919 - 2²⁰ = 4161343 is a prime.

It is a super-2 number, since 2×5209919² = 54286511973122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5209913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18074 + ... + 18359.

It is an arithmetic number, because the mean of its divisors is an integer number (765114).

Almost surely, 2^5209919 is an apocalyptic number.

5209919 is a deficient number, since it is larger than the sum of its proper divisors (910993).

5209919 is a wasteful number, since it uses less digits than its factorization.

5209919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36457.

The product of its (nonzero) digits is 7290, while the sum is 35.

The square root of 5209919 is about 2282.5246986616. The cubic root of 5209919 is about 173.3579078405.

The spelling of 5209919 in words is "five million, two hundred nine thousand, nine hundred nineteen".